如何在React Router v4中访问<Route />之外的历史对象

Question

我有以下代码:

import {
  BrowserRouter as Router,
  Route,
  Link
} from 'react-router-dom'


const Routes = () => (
  <Router basename="/blog">
    <div>
      <Header />
      <Route exact path="/" component={Main}/>
      <Route path="/article/:id" component={ArticleView}/>
    </div>
  </Router>
)

我可以通过Main和ArticleView组件中的props访问历史记录或匹配.但我无法访问它<Header />.有没有办法在Header组件中获取历史对象？

Answer 1

您可以使用withRouter HOC.

在定义了Header组件的位置,将导出包装在withRouter调用中,如下所示,将使您的Header组件可以访问匹配,位置和历史记录

import {withRouter} from 'react-router'

class Header extends Component {
  static propTypes = {
    match: PropTypes.object.isRequired,
    location: PropTypes.object.isRequired,
    history: PropTypes.object.isRequired
  }
  render () {
    const { match, location, history } = this.props

    return <h2>The Header</h2>
  }
}

export default withRouter(Header)